Three simple steps
How to use this tool?
This free online converter translates Python source code into Kotlin in three simple steps.
- Step 1
Add your Python code
Type, paste, or upload the Python code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Kotlin.
- Step 3
Review the result
Review, copy, or download the resulting Kotlin code from the output editor.
See it in action
Examples of Python to Kotlin conversion
These examples show Python source code and the corresponding Kotlin translation. Generated results can vary as AI models are updated.
Example 1
Is String Palindrome
Program that checks if a string is a palindrome or not.
Python code
Kotlin code
Example 2
Even or Odd
A well commented function to check if a number if odd or even.
Python code
Kotlin code
Language comparison
Key differences between Python and Kotlin
| Characteristic | Python | Kotlin |
|---|---|---|
| Syntax | Python has a simple and easy-to-learn syntax that emphasizes readability and reduces the cost of program maintenance. It uses indentation to create blocks and has a dynamic type system. | Kotlin has a concise and expressive syntax that reduces the amount of boilerplate code required. It is a statically typed language that supports type inference and null safety. |
| Paradigm | Python is a multi-paradigm language that supports procedural, object-oriented, and functional programming styles. | Kotlin is a multi-paradigm language that supports object-oriented and functional programming styles. It also has some features of procedural programming. |
| Typing | Python is dynamically typed, which means that the type of a variable is determined at runtime. | Kotlin is statically typed, which means that the type of a variable is determined at compile-time. It also supports type inference. |
| Performance | Python is an interpreted language, which can make it slower than compiled languages. However, it has a large number of libraries and frameworks that can help improve performance. | Kotlin is a compiled language that can be as fast as Java. It also has good interop with Java, which means that it can use Java libraries and frameworks. |
| Libraries and frameworks | Python has a large number of libraries and frameworks for a wide range of applications, including web development, scientific computing, and machine learning. | Kotlin has a growing number of libraries and frameworks, but it is not as mature as Python's ecosystem. However, it has good interop with Java, which means that it can use Java libraries and frameworks. |
| Community and support | Python has a large and active community with many resources available for learning and development. It is also supported by many companies and organizations. | Kotlin has a growing community with good support from JetBrains, the company that created it. It is also supported by Google for Android development. |
| Learning curve | Python has a relatively easy learning curve, especially for beginners. Its simple syntax and dynamic typing make it easy to get started. | Kotlin has a moderate learning curve, especially for developers who are familiar with Java. Its concise syntax and null safety can take some time to get used to. |
Common questions
Frequently Asked Questions
How do I convert Python to Kotlin?
Paste your Python code into the input box, confirm the languages are set to Python and Kotlin, and click Convert. CodeConvert AI analyzes your Python code and generates equivalent Kotlin code in seconds, preserving the original logic and structure.
What are the main differences between Python and Kotlin?
Python and Kotlin differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Python construct to its closest Kotlin equivalent. See the comparison table below for the key differences between Python and Kotlin.
Is the converted Kotlin code accurate?
The AI produces high-quality Kotlin code that preserves the behavior of your original Python code and follows Kotlin conventions. It handles common patterns, data structures, and idioms for both Python and Kotlin. For large or performance-critical code, review and test the Kotlin output before using it in production.
Can I convert an entire Python project to Kotlin?
You can convert Python files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Python to Kotlin. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Kotlin back to Python?
Yes. CodeConvert AI converts in both directions, so you can convert Kotlin to Python just as easily using our Kotlin to Python converter. Try the Kotlin to Python Converter
Is the Python to Kotlin converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Python to Kotlin without an account for up to 2 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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